Magazine for photographic films



Nov. 1, 1966 l.. D'INCERTI MAGAZINE FOR PHOTOGRAPHIC FILMS Filed Nov. 2, 1964 United States Patent O 3,282,527 MAGAZINE FR PHOTOGRAPHIC FILMS Lodovico Dlncerti, Milan, Italy, assignor to Societ per Azioni Ferrania, Milan, `italy, a corporation of Italy Filed Nov. 2, 1964, Ser. No. 408,108 Claims priority, application italy, Nov. 14, 1963, 40,960/63 Claims. (Cl. 242-711) This invention concerns a magazine for photographic films.

The known photographic film magazines used by manufacturers `of sensitive material are generally constituted by an envelope, comprising a `cylindrically rolled band, whose longitudinal edges are conveniently arranged so `as to form a slit through which the film slides out. At each end of said envelope caps are applied and in some types of the known magazines one of these caps is integral with the band.

The main feature of all of these known magazines is the presence of two velvet bands or strips, applied to the edges of the longitudinal slit of the envelope, to protect the film within the envelope from light. lt is necessary that the velvet used for this purpose have certain features; in particular, it must be soft so as not to scratch the delicate surface of the film, and of a sufficiently thick and solid texture so as not to allow infiltration of light; lastly, it must be of a resistant structure, such as not to lose fibers which would damage -the photographic Ipicture. Another drawback encountered in the known magazines is the difficulty experienced in the application of the velvet strips to the edges of the band, which involvs particular operations, which increase the production costs of the magazine.

The invention concerns a magazine designed to eliminate the use of velvet strips and to avoid the above drawbacks. Furthermore, said magazine is constructed so as to ensure a perfect-ly light-proof sealing to permit easy and quick loading `of the film, and to allow the rapid manufacturing of the magazine itself, thus diminishing its costs.

The magazine, according to the present invention, constituted by a cylindrical envelope with a lid and furnished y with a slit alongside one of its generatrices, is characterized by an arcuated duct whose apertures are connected with the slit and the inside of the envelope, in order to permit the passage of the film.

In practice, this concept permits a plurality of embodiments of the magazine within the scope of the present invention.

For instance, the arcuated duct for the film can be, at least in part, defined by the wall of the envelope and the lid thereof, or said arcuated duct can be constituted by an arcuated fin in the lid, and cooperable with a portion of the arcuated wall of the envelope.

The arcuated n is advantageously fitted within the interior of the envelope and the thus defined arcuated duct leads to the exterior at the slit in said envelope.

The invention will now be explained by `the following specification with reference to the accompanying drawing, which illustrates, by way of example, a preferred embodiment of the magazine according to this invention. In the drawing:

FIGURE 1 is a vertical cross-section of the magazine;

FIGURES 2 and 3 are cross-section views taken respectively along lines Il-II and Ill-Ill, respectively in FIG- URE l, which show the two parts of the magazine in their positions of, respectively, about to be closed and closed;

FIGURES 4 and 5 are sectioned elevation views of the lid and the envelope of the magazine.

The magazine as illustrated can be advantageously constructed in moulded plastic material, and it is formed by two complementary parts: part A, constituting the envelope, and part B, constituting the lid, whilst inside of said Patented Nov.. 1, 1966 envelope is placed, in a known manner, bobbin C on which is wound film D.

According to the present invention, bobbin C is held, at its ends, by holes or seats in bottom 10 of the envelope and lid B.

The free end of film D is fitted into an arcuated duct 12, defined by peripheral wall 14 of the envelope A, and an arcuated fin 16, integral with the cap 15, forming the lid. Said duct 12 ends in a rectilinear length 18 whic'h, at rib 20, on the outer side of envelope A, defines an outlet slit for the film which is open at the edge of envelope A, so as to facilitate the threading of the free end of the lfilm D, and also for other purposes, as will be set out hereafter.

Bottom 10 has an annular groove 22, in which end 24 of arcuated fin 16 is slidingly housed, thereby being held in its due position so as to ensure the parallel position of duct 12.

Cap 15, to which is secured the arcuate fin 16, has near its edge an annular groove 26 in which is engaged edge 28 of the envelope A, so as to ensure the correct and mutual position of these parts when they are engaged.

Lid B is secured to envelope A by means of removable connecting members, comp-rising in the case illustrated herein at least two shaped lugs 30, provided in a suitable position in the internal part of cap 15, which engage with cooperating lugs 32, provided on the inside of envelope A and at the edge 28.

These lugs are suitably shaped so as to perform groove and tongue joint or bayonet connections, which besides closing envelope A, ensure the correct p'osition of slit 18 of the latter relative to the longitudinal edges of fin 16.

Cap 15 has, atrib 20, a shaped projection 21 which, when `the magazine is closed, aligns itself and registers with said rib. Said projection has in a convenient position a resilient toot-h 34 or serration which engages in the opening provided on the upper end of slit 18, in order to ensure the correct position between lid B and envelope A.

After the foregoing, the manner of loading the film D into the magazine should be clear. Bobbin C is introduced into envelope A, and the free end of the film is introduced into slit 18, by threading it through the upper opening of said slit. Thereafter, lid B is applied on envelope A, by fitting arcuate fin 16 in the last turn of the coil of the film bobbin, with its convex portion facing the back of the film, as illustrated in FIGURE 2, where the lugs Si) of lid B are adjacent to the cooperating lugs 32 of envelope A. Then lid B is rotated relative to envelope A, in the direction of arrow X in FIGURE 2, to engage lugs 30 with the co-operating lugs 32; furthermore, tooth 34 is caused to engage with the upper lend of slit 18. At the end of this operation, the longitudinal front edge 3S of arcuated fin 16 contacts the face of a rib 25, provided in the proximity of slit 18 and inside the envelope A, in order to complete the protection of film D from light which is performed above all by the labyrinth path formed by arcuated duct 12, extending through about The opening of the magazine is also easily performed by rotating cover B in the direction opposite arrow X and by overcoming the resistance of the resilient tooth 34, in order to free the latter from slit 18.

A number of modifications and variations can be made to the magazine according to -this invention without departing from the scope Vof the present invention. For instance, arcuated fin 16 can be provided in envelope A, as an integral part of it, or it can also be designed as an independent element whose arcuated terminals are housed in corresponding grooves provided in bottom 1t) of the envelope and in the bottom of cap 15. The angular amplitude of fin 16 can vary conveniently in relation to the scopes which it is intended to achieve.

Although a magazine of moulded plastic material was considered as the preferred embodiment of the invention,

said magazine could be made of metal while maintaining the same advantages. At any rate, the structural details may vary without departing from the scope of the invention, and consequently of the protection `of the present patent.

What I claim is: 1. A magazine for containing photographic films; said magazine comprising a hollow cylindrical envelope extending along a longitudinal axis, and a lid; said envelope having a first end and a second end and having an internal wall surface extending therebetween; a tirst means closing said iirst end; said lid being positioned to cover said second end; said envelope having a slit passing completely therethr-ou-gh which extends substantially parallel to said longitudinal axis of said envelope for the passage of film from Within said envelope to without the same; a tinlike member aiixed to said lid; said member having a convexly arcuated surface; said member extending into said envelope with said arcuated surface thereof spaced away from and substantially parallel to said internal wall surface of said envelope along a iirst portion of the length of said member, thereby dening an arcuated duct for the passage of lrn; said rst portion extending an arcuate length which is suicient to permit light entering said duct to be blocked from passing completely through said duct into said magazine; said rst portion extending away from one side of said slit in a rst direction; a second portion of said arcuated surface extending past said slit; 4the internal surface of said envelope on the other side of said slit including a projecting region for contacting said second fin portion to prevent the entry of light into said magazine.

2. The -magazine of claim 1 in which said first means has .an annular groove; the end of said member opposite said lid being housed in said annular groove.

3. The magazine of claim 1 in which said lid has a projection engageable in said slit for rotationally securing said envelope in proper position with respect to said lid.

4. The magazine of claim 2 in which said second end has an edge portion; said lid having an annular groove for housing said edge portion; said magazine having means for removably connecting said lid with said envelope.

5. The magazine of claim 1 in which said envelope has a raised rib, at least in part external to it, extending vertically along said envelope; said slit extending through said rib.

References Cited by the Examiner UNITED STATES PATENTS 2,017,160 10/1935 Parker 242--71L1 2,187,547 1/1940 Pollock 242-71.1 2,213,776 9/1940 Walter 242-7l.l

FOREIGN PATENTS 950,324 3/ 1949 France.

FRANK I, COHEN, Primary Examiner.

STANLEY N. GILREATH, Examiner.

N. L. MINTZ, Assistant Examiner. 

1. A MAGAZINE FOR CONTAINING PHOTOGRAPHIC FILMS; SAID MAGAZINE COMPRISING A HOLLOW CYLINDRICAL ENVELOPE EXTENDING ALONG A LONGITUDINAL AXIS, AND A LID; SAID ENVELOPE HAVING A FIRST END AND A SECOND END AND HAVING AN INTERNAL WALL SURFACE EXTENDING THEREBETWEEN; A FIRST MEANS CLOSING SAID FIRST END; SAID LID BEING POSITIONED TO COVER SAID SECOND END; SAID ENVELOPE HAVING A SLIT PASSING COMPLETELY THERETHROUGH WHICH EXTENDS SUBSTANTIALLY PARALLEL TO SAID LONGITUDINAL AXIS OF SAID ENVELOPE FOR THE PASSAGE OF FILM FROM WITHIN SAID ENVELOPE TO WITHOUT THE SAME; A FINLIKE MEMBER AFFIXED TO SAID LID; SAID MEMBER AHAVING A CONVEXLY ARCUATED SURFACE; SAID MEMBER EXTENDING INTO SAID ENVELOPE WITH SAID ARCUATED SURFACE THEREOF SPACED AWAY FROM AND SUBSTANTIALLY PARALLEL TO SAID INTERNAL WALL SURFACE OF SAID ENVELOPE ALONG A FIRST PORTION OF THE LENGTH OF SAID MEMBER, THEREBY DEFINING AN ARCUATED DUCT FOR THE PASSAGE OF FILM; SAID FIRST PORTION EXTENDING AN ARCUATE LENGTH WHICH IS SUFFICIENT TO PERMIT LIGHT ENTERING SAID DUCT TO BE BLOCKED FROM PASSING COMPLETELY THROUGH SAID DUCT INTO SAID MAGAZINE; SAID FIRST PORTION EXTENDING AWAY FROM ONE SIDE OF SAID SLIT IN A FIRST DIRECTION; A SECOND PORTION OF SAID ARCUATED SURFACE EXTENDING PAST SAID SLIT; THE INTERNAL SURFACE OF SAID ENVELOPE ON THE OTHER SIDE OF SAID SLIT INCLUDING A PROJECTING REGION FOR CONTACTING SAID SECOND FIN PORTION TO PREVENT THE ENTRY OF LIGHT INTO SAID MAGAZINE. 